SWELLRADAR
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Updating conditions · Community mapped

Praia do Aterro

Southern Europe, Portugal · Beach break

Local time

14:00

Sunrise

07:29

Sunset

19:24

Data source

Preview

Wave height

1.8m

Excellent · 89/100

Primary swell

1.5 m

12s · W

Wind

3 km/h

Local effect · E

Sea

18.2°C

3/2 mm suit

Tide

Falling

+1.1 m · Low 20:00

Preview guidance updated now

Forecast integrity.

Every recommendation carries its source state, model coverage and sampling context.

45% model coverageNearest sea-grid sample

Model agreement

—

Comparison unavailable

Cross-model consensus

The primary forecast remains available without a cross-model signal.

ECMWFMétéo-FranceNOAA

Wave spread

—

Period spread

—

Horizon

—

Preview

Marine

Deterministic preview guidance

Preview

Wind & weather

Deterministic preview guidance

Preview

Tide context

Modelled preview phase

Checking

Ocean station

Independent observation used when a suitable station is available.

Forecast Trust 2.0

Cleaner signal needed

WAIT

Hold for a fresher or better-aligned window.

Surf 89/100Confidence 36%
Decision layer

Why this call.

A conservative read of forecast quality, independent observations, model spread and the exact break profile.

Now

Best window

14:00–17:00

Excellent · 1.8–1.9 m · good tide fit

Model agreement

Comparison pending

A single-model forecast is available without a cross-check.

Observed ocean

Checking nearby stations

Looking for an independent real-ocean signal.

Break profile

Mapped location

Praia do Aterro · <1 km model sample · 45% coverage

Confidence · next 24 hours

Higher bars mean a cleaner model signal

14:00
·
18:00
·
22:00
·
02:00
·
06:00
·
10:00
·
Regional guidanceNorth Portugal coast guidance

Spot intelligence.

Regional guidance only: open beaches are exposed, while harbour walls and headlands can change both size and current.

Profile source · IPMA coastal forecast network

Wave

Beach break

Beach break · local setup pending

Swell window

W–NW

Regional exposure

Clean wind

E–SE offshore

Regional baseline only

Tide window

Mid tide · bank dependent

Verify at the break

Know before you paddle

Live conditions and local advice always override this profile.

Exposed Atlantic swellRock-framed currentsShorebreakCold-season storm pulses

Hourly forecast

The next 48 hours

14:00

12s

3 km/h

18:00

13s

7 km/h

22:00

13s

11 km/h

02:00

14s

15 km/h

06:00

13s

14 km/h

10:00

13s

11 km/h

14:00

13s

6 km/h

18:00

12s

3 km/h

22:00

11s

4 km/h

02:00

10s

7 km/h

06:00

10s

12 km/h

10:00

9s

15 km/h

Tide intelligence

Read the water.

Tide phase, speed and range for timing, paired with offshore-current context and a nearby buoy whenever available.

Water level now

High · falling

+1.1 m

relative to MSL

Motion

Gentle fall

-0.13 m/h

Next turn

Low · 20:00

In 6 hours

24h range

2.3 m

Mesotidal

Offshore current

0.43 km/h

Flowing N

Low

28 Mon · 20:00

-1.1 m

High

29 Tue · 02:00

+1.1 m

Low

29 Tue · 08:00

-1.1 m

High

29 Tue · 15:00

+1.1 m

Tides and currents use the Météo-France global ocean model via Open-Meteo at roughly 8 km resolution. Sea level includes tide and atmospheric effects and is referenced to global mean sea level, not a local chart datum. Coastal accuracy is limited; never use this for navigation.

7-day outlook

Pick your day.

Today

2.1 m

12s · W

Excellent · 89

29 Tue

2.1 m

13s · NW

Excellent · 89

30 Wed

2.0 m

11s · W

Excellent · 89

Nearby decision radar

Stay here—or move?

Reading nearby breaks
Ranked from surf quality, confidence, calibration and your profileNearest 4 mapped breaks · no generic popularity score

The break

Beach break

Community-mapped location with regional surf context. Spot-specific geometry is still awaiting calibration.

Timing

E–SE offshore

Mid tide · bank dependent. Re-check local observations and the lineup before you paddle out.

Data note

Fallback preview

Wave guidance, tide phase and offshore currents are modelled unless a nearby buoy observation is shown.